def test_array(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(c_double)
pat = pointer(t())
pat[0] = np.zeros(32, dtype=np.float)
arr = get_array(pat[0])
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(np.double), arr.dtype)
self.failUnless((arr == (0.0,) * 32).all())
data = ((1.0, 2.0, 3.0),
(4.0, 5.0, 6.0),
(7.0, 8.0, 9.0))
a = np.array(data, dtype=np.double)
pat[0] = a
arr = get_array(pat[0])
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(np.double), arr.dtype)
self.failUnless((arr == data).all())
data = ((1.0, 2.0), (3.0, 4.0), (5.0, 6.0))
a = np.array(data,
dtype=np.double,
order="F")
pat[0] = a
arr = get_array(pat[0])
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(np.double), arr.dtype)
self.failUnlessEqual(pat[0][0], data)
def test_array(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(c_double)
pat = pointer(t())
pat[0] = np.zeros(32, dtype=np.float)
arr = get_array(pat[0])
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(np.double), arr.dtype)
self.failUnless((arr == (0.0, ) * 32).all())
data = ((1.0, 2.0, 3.0), (4.0, 5.0, 6.0), (7.0, 8.0, 9.0))
a = np.array(data, dtype=np.double)
pat[0] = a
arr = get_array(pat[0])
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(np.double), arr.dtype)
self.failUnless((arr == data).all())
data = ((1.0, 2.0), (3.0, 4.0), (5.0, 6.0))
a = np.array(data, dtype=np.double, order="F")
pat[0] = a
arr = get_array(pat[0])
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(np.double), arr.dtype)
self.failUnlessEqual(pat[0][0], data)
def test_UDT_ndarray(self):
np = get_numpy()
if np is None:
return
from comtypes.gen.TestComServerLib import MYCOLOR
t = _midlSAFEARRAY(MYCOLOR)
self.failUnless(t is _midlSAFEARRAY(MYCOLOR))
sa = t.from_param([MYCOLOR(0, 0, 0), MYCOLOR(1, 2, 3)])
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
# The conversion code allows numpy to choose the dtype of
# structured data. This dtype is structured under numpy 1.5, 1.7 and
# 1.8, and object in 1.6. Instead of assuming either of these, check
# the array contents based on the chosen type.
if arr.dtype is np.dtype(object):
data = [(x.red, x.green, x.blue) for x in arr]
else:
float_dtype = np.dtype('float64')
self.assertIs(arr.dtype[0], float_dtype)
self.assertIs(arr.dtype[1], float_dtype)
self.assertIs(arr.dtype[2], float_dtype)
data = [tuple(x) for x in arr]
self.failUnlessEqual(data, [(0.0, 0.0, 0.0), (1.0, 2.0, 3.0)])
def test_UDT_ndarray(self):
np = get_numpy()
if np is None:
return
from comtypes.gen.TestComServerLib import MYCOLOR
t = _midlSAFEARRAY(MYCOLOR)
self.failUnless(t is _midlSAFEARRAY(MYCOLOR))
sa = t.from_param([MYCOLOR(0, 0, 0), MYCOLOR(1, 2, 3)])
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
# The conversion code allows numpy to choose the dtype of
# structured data. This dtype is structured under numpy 1.5, 1.7 and
# 1.8, and object in 1.6. Instead of assuming either of these, check
# the array contents based on the chosen type.
if arr.dtype is np.dtype(object):
data = [(x.red, x.green, x.blue) for x in arr]
else:
float_dtype = np.dtype('float64')
self.assertIs(arr.dtype[0], float_dtype)
self.assertIs(arr.dtype[1], float_dtype)
self.assertIs(arr.dtype[2], float_dtype)
data = [tuple(x) for x in arr]
self.failUnlessEqual(data, [(0.0, 0.0, 0.0), (1.0, 2.0, 3.0)])
def test_VT_UNKNOWN_multi_ndarray(self):
np = get_numpy()
if np is None:
return
a = _midlSAFEARRAY(POINTER(IUnknown))
t = _midlSAFEARRAY(POINTER(IUnknown))
self.failUnless(a is t)
def com_refcnt(o):
"Return the COM refcount of an interface pointer"
import gc
gc.collect()
gc.collect()
o.AddRef()
return o.Release()
from comtypes.typeinfo import CreateTypeLib, ICreateTypeLib
punk = CreateTypeLib("spam").QueryInterface(
IUnknown) # will never be saved to disk
# initial refcount
initial = com_refcnt(punk)
# This should increase the refcount by 4
sa = t.from_param((punk, ) * 4)
self.failUnlessEqual(initial + 4, com_refcnt(punk))
# Unpacking the array must not change the refcount, and must
# return an equal object. Creating an ndarray may change the
# refcount.
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(object), arr.dtype)
self.failUnless((arr == (punk, ) * 4).all())
self.failUnlessEqual(initial + 8, com_refcnt(punk))
del arr
self.failUnlessEqual(initial + 4, com_refcnt(punk))
del sa
self.failUnlessEqual(initial, com_refcnt(punk))
# This should increase the refcount by 2
sa = t.from_param((punk, None, punk, None))
self.failUnlessEqual(initial + 2, com_refcnt(punk))
null = POINTER(IUnknown)()
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(object), arr.dtype)
self.failUnless((arr == (punk, null, punk, null)).all())
del sa
del arr
self.failUnlessEqual(initial, com_refcnt(punk))
def test_int(self):
np = get_numpy()
if np is None:
return
for dtype in ('int8', 'int16', 'int32', 'int64', 'uint8',
'uint16', 'uint32', 'uint64'):
a = np.array((1, 1, 1, 1), dtype=dtype)
v = VARIANT()
v.value = a
self.failUnless((v.value == a).all())
def test_double(self):
np = get_numpy()
if np is None:
return
for dtype in ('float32', 'float64'):
# because of FLOAT rounding errors, whi will only work for
# certain values!
a = np.array([1.0, 2.0, 3.0, 4.5], dtype=dtype)
v = VARIANT()
v.value = a
self.failUnless((v.value == a).all())
def test_mixed(self):
np = get_numpy()
if np is None:
return
now = datetime.datetime.now()
a = np.array(
[11, "22", None, True, now, decimal.Decimal("3.14")]).reshape(2,3)
v = VARIANT()
v.value = a
self.failUnless((v.value == a).all())
def test_VT_UNKNOWN_multi_ndarray(self):
np = get_numpy()
if np is None:
return
a = _midlSAFEARRAY(POINTER(IUnknown))
t = _midlSAFEARRAY(POINTER(IUnknown))
self.failUnless(a is t)
def com_refcnt(o):
"Return the COM refcount of an interface pointer"
import gc; gc.collect(); gc.collect()
o.AddRef()
return o.Release()
from comtypes.typeinfo import CreateTypeLib, ICreateTypeLib
punk = CreateTypeLib("spam").QueryInterface(IUnknown) # will never be saved to disk
# initial refcount
initial = com_refcnt(punk)
# This should increase the refcount by 4
sa = t.from_param((punk,) * 4)
self.failUnlessEqual(initial + 4, com_refcnt(punk))
# Unpacking the array must not change the refcount, and must
# return an equal object. Creating an ndarray may change the
# refcount.
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(object), arr.dtype)
self.failUnless((arr == (punk,)*4).all())
self.failUnlessEqual(initial + 8, com_refcnt(punk))
del arr
self.failUnlessEqual(initial + 4, com_refcnt(punk))
del sa
self.failUnlessEqual(initial, com_refcnt(punk))
# This should increase the refcount by 2
sa = t.from_param((punk, None, punk, None))
self.failUnlessEqual(initial + 2, com_refcnt(punk))
null = POINTER(IUnknown)()
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(object), arr.dtype)
self.failUnless((arr == (punk, null, punk, null)).all())
del sa
del arr
self.failUnlessEqual(initial, com_refcnt(punk))
def test_VT_BOOL_ndarray(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(VARIANT_BOOL)
sa = t.from_param([True, False, True, False])
arr = get_array(sa)
self.failUnlessEqual(np.dtype(np.bool_), arr.dtype)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnless((arr == (True, False, True, False)).all())
def test_VT_BOOL_ndarray(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(VARIANT_BOOL)
sa = t.from_param([True, False, True, False])
arr = get_array(sa)
self.failUnlessEqual(np.dtype(np.bool_), arr.dtype)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnless((arr == (True, False, True, False)).all())
def test_VT_BSTR_ndarray(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(BSTR)
sa = t.from_param(["a", "b", "c"])
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype('<U1'), arr.dtype)
self.failUnless((arr == ("a", "b", "c")).all())
self.failUnlessEqual(SafeArrayGetVartype(sa), VT_BSTR)
def test_VT_BSTR_ndarray(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(BSTR)
sa = t.from_param(["a", "b", "c"])
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype('<U1'), arr.dtype)
self.failUnless((arr == ("a", "b", "c")).all())
self.failUnlessEqual(SafeArrayGetVartype(sa), VT_BSTR)
def test_VT_VARIANT_ndarray(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(VARIANT)
now = datetime.datetime.now()
sa = t.from_param([11, "22", None, True, now, Decimal("3.14")])
arr = get_array(sa)
self.failUnlessEqual(np.dtype(object), arr.dtype)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnless((arr == (11, "22", None, True, now, Decimal("3.14"))).all())
self.failUnlessEqual(SafeArrayGetVartype(sa), VT_VARIANT)
def test_VT_I4_ndarray(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(c_long)
sa = t.from_param([11, 22, 33])
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(np.int), arr.dtype)
self.failUnless((arr == (11, 22, 33)).all())
self.failUnlessEqual(SafeArrayGetVartype(sa), VT_I4)
def test_VT_VARIANT_ndarray(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(VARIANT)
now = datetime.datetime.now()
sa = t.from_param([11, "22", None, True, now, Decimal("3.14")])
arr = get_array(sa)
self.failUnlessEqual(np.dtype(object), arr.dtype)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnless(
(arr == (11, "22", None, True, now, Decimal("3.14"))).all())
self.failUnlessEqual(SafeArrayGetVartype(sa), VT_VARIANT)
def test_VT_I4_ndarray(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(c_long)
sa = t.from_param([11, 22, 33])
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(np.int), arr.dtype)
self.failUnless((arr == (11, 22, 33)).all())
self.failUnlessEqual(SafeArrayGetVartype(sa), VT_I4)
def test_VT_I4_ndarray(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(c_long)
inarr = np.array([11, 22, 33])
sa = t.from_param(inarr)
arr = get_array(sa)
self.assertTrue(isinstance(arr, np.ndarray))
self.assertEqual(np.dtype(np.int), arr.dtype)
self.assertTrue((arr == inarr).all())
self.assertEqual(SafeArrayGetVartype(sa), VT_I4)
def test_UDT_ndarray(self):
np = get_numpy()
if np is None:
return
from comtypes.gen.TestComServerLib import MYCOLOR
t = _midlSAFEARRAY(MYCOLOR)
self.failUnless(t is _midlSAFEARRAY(MYCOLOR))
sa = t.from_param([MYCOLOR(0, 0, 0), MYCOLOR(1, 2, 3)])
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(object), arr.dtype)
self.failUnlessEqual([(x.red, x.green, x.blue) for x in arr],
[(0.0, 0.0, 0.0), (1.0, 2.0, 3.0)])
def test_VT_VARIANT_ndarray(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(VARIANT)
now = datetime.datetime.now()
inarr = np.array(
[11, "22", "33", 44.0, None, True, now,
Decimal("3.14")]).reshape(2, 4)
sa = t.from_param(inarr)
arr = get_array(sa)
self.assertEqual(np.dtype(object), arr.dtype)
self.assertTrue(isinstance(arr, np.ndarray))
self.assertTrue((arr == inarr).all())
self.assertEqual(SafeArrayGetVartype(sa), VT_VARIANT)
def test_UDT_ndarray(self):
np = get_numpy()
if np is None:
return
from comtypes.gen.TestComServerLib import MYCOLOR
t = _midlSAFEARRAY(MYCOLOR)
self.failUnless(t is _midlSAFEARRAY(MYCOLOR))
sa = t.from_param([MYCOLOR(0, 0, 0), MYCOLOR(1, 2, 3)])
arr = get_array(sa)
self.failUnless(isinstance(arr, np.ndarray))
self.failUnlessEqual(np.dtype(object), arr.dtype)
self.failUnlessEqual([(x.red, x.green, x.blue) for x in arr],
[(0.0, 0.0, 0.0), (1.0, 2.0, 3.0)])
def test_datetime64_ndarray(self):
np = get_numpy()
if np is None:
return
try:
np.datetime64
except AttributeError:
return
dates = np.array([
np.datetime64("2000-01-01T05:30:00", "s"),
np.datetime64("1800-01-01T05:30:00", "ms"),
np.datetime64("2014-03-07T00:12:56", "us"),
np.datetime64("2000-01-01T12:34:56", "ns"),
])
t = _midlSAFEARRAY(VARIANT)
sa = t.from_param(dates)
arr = get_array(sa).astype(dates.dtype)
self.failUnless((dates == arr).all())
def test_datetime64_ndarray(self):
np = get_numpy()
if np is None:
return
try:
np.datetime64
except AttributeError:
return
dates = np.array([
np.datetime64("2000-01-01T05:30:00", "s"),
np.datetime64("1800-01-01T05:30:00", "ms"),
np.datetime64("2014-03-07T00:12:56", "us"),
np.datetime64("2000-01-01T12:34:56", "ns"),
])
t = _midlSAFEARRAY(VARIANT)
sa = t.from_param(dates)
arr = get_array(sa).astype(dates.dtype)
self.failUnless((dates == arr).all())
def test_datetime64(self):
np = get_numpy()
if np is None:
return
try:
np.datetime64
except AttributeError:
return
dates = [
np.datetime64("2000-01-01T05:30:00", "s"),
np.datetime64("1800-01-01T05:30:00", "ms"),
np.datetime64("2000-01-01T12:34:56", "us")
]
for date in dates:
v = VARIANT()
v.value = date
self.failUnlessEqual(v.vt, VT_DATE)
self.failUnlessEqual(v.value, date.astype(datetime.datetime))
def test_nested_contexts(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(BSTR)
sa = t.from_param(["a", "b", "c"])
first = sa[0]
with safearray_as_ndarray:
second = sa[0]
with safearray_as_ndarray:
third = sa[0]
fourth = sa[0]
fifth = sa[0]
self.failUnless(isinstance(first, tuple))
self.failUnless(isinstance(second, np.ndarray))
self.failUnless(isinstance(third, np.ndarray))
self.failUnless(isinstance(fourth, np.ndarray))
self.failUnless(isinstance(fifth, tuple))
def test_nested_contexts(self):
np = get_numpy()
if np is None:
return
t = _midlSAFEARRAY(BSTR)
sa = t.from_param(["a", "b", "c"])
first = sa[0]
with safearray_as_ndarray:
second = sa[0]
with safearray_as_ndarray:
third = sa[0]
fourth = sa[0]
fifth = sa[0]
self.failUnless(isinstance(first, tuple))
self.failUnless(isinstance(second, np.ndarray))
self.failUnless(isinstance(third, np.ndarray))
self.failUnless(isinstance(fourth, np.ndarray))
self.failUnless(isinstance(fifth, tuple))